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Polymixiiformes (Beardfishes) >
Polymixiidae (Beardfishes)
Etymology: Polymixia: Greek, poly = a lot of + Greek, myxos = mucus (Ref. 45335); melanostoma: Name from Greek words 'melano' and 'stoma', meaning 'black mouth', referring to its unique black oral cavity.
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
marien benthopelagisch; diepte 765 - 778 m (Ref. 132970). Tropical
Western Pacific: Taiwan and New Caledonia.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ?  range ? - ? cm
Max length : 15.3 cm SL mannelijk / geslacht onbekend; (Ref. 132970)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 4 - 5; Dorsale zachte stralen (totaal) : 35 - 37; Anale stekels: 4; Anale zachte stralen: 14 - 16; Wervels: 29. This species is distinguished from its congeners by the following set of characters: D IV-V,35-37; gill rakers on the outer face of first gill arch 3+1+6=10; scales row between dorsal-fin origin and lateral line vertically 6-8 and posteriorly 12-14; pyloric caeca 40; snout is rounded, with the surface rough and gelatinous, its tip evidently protrude anterior margin of premaxilla; ctenii on body scales arranged in wedge shape, forming three rows; fourth anal-fin spine long, 1.0-1.2 in eye diameter; dorsal-fin is long, 49.6-53.0% SL; oral-branchial cavity, not including the underside of tongue, black (Ref. 132970).
Cross section: compressed.
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Fan, Y.-C., Y. Su, C.-H. Lin, C.-W. Chang and H.-C. Lin, 2024. Polymixia melanostoma, a new beardfish from the western Pacific (Teleostei, Polymixiiformes, Polymixiidae). ZooKeys 1220:105-121. (Ref. 132970)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gevaar voor de mens
Harmless
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Schattingen op basis van modellen
Fylogenetische diversiteitsindex (Ref. 82804) |
PD50 = 0.5007 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01995 (0.00906 - 0.04395), b=3.01 (2.83 - 3.19), in cm total length, based on all LWR estimates for this body shape (Ref. 93245). |
Trofisch niveau (Ref. 69278) |
3.8 ±0.4 se; based on size and trophs of closest relatives |
Weerstandsvermogen (Ref. 120179) |
Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (Preliminary K or Fecundity.). |
Kwetsbaarheid van de visserij (Ref. 59153) |
Low to moderate vulnerability (34 of 100). 🛈 |